What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

United Airlines is the most popular carrier operating from Louisville Intl to Sydney Kingsford Smith

What airlines fly to Sydney?

Qantas Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Sydney from Louisville according to our data. Qantas Airways is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 5 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of October 2026.

How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$693 Cheap Flights from Louisville to Sydney in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 7:00 amSDF Louisville Intl-SYD Sydney Kingsford Smith

32h 00m1 stop Houston George Bush Intcntl

9:15 am - 1:23 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 08m1 stop Houston George Bush Intcntl

$1,199United Airlines

Sun, Nov 1 - Mon, Nov 23

7:00 am - 7:00 amSDF Louisville Intl-SYD Sydney Kingsford Smith

32h 00m1 stop Houston George Bush Intcntl

9:15 am - 8:33 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

27h 18m1 stop Houston George Bush Intcntl

$1,199United Airlines

Wed, Nov 4 - Tue, Nov 24

8:00 am - 9:05 amSDF Louisville Intl-SYD Sydney Kingsford Smith

33h 05m2 stops Denver Intl Los Angeles

9:15 am - 1:23 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 08m1 stop Houston George Bush Intcntl

$1,199United Airlines

Tue, Nov 3 - Tue, Nov 10

7:00 am - 7:00 amSDF Louisville Intl-SYD Sydney Kingsford Smith

32h 00m1 stop Houston George Bush Intcntl

9:15 am - 8:33 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

27h 18m1 stop Houston George Bush Intcntl

$1,199United Airlines

Mon, Nov 2 - Mon, Nov 23

3:26 pm - 8:30 amSDF Louisville Intl-SYD Sydney Kingsford Smith

25h 04m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 am - 12:00 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

41h 20m2 stops Los Angeles Minneapolis St Paul

$1,204Delta

Mon, Nov 2 - Mon, Nov 23

1:59 pm - 8:30 amSDF Louisville Intl-SYD Sydney Kingsford Smith

26h 31m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 am - 9:42 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

27h 02m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,204Delta

Tue, Nov 3 - Wed, Nov 25

3:26 pm - 8:30 amSDF Louisville Intl-SYD Sydney Kingsford Smith

25h 04m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 am - 12:00 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

41h 20m2 stops Los Angeles Minneapolis St Paul

$1,204Delta

Sun, Nov 1 - Mon, Nov 23

6:27 pm - 11:45 amSDF Louisville Intl-SYD Sydney Kingsford Smith

25h 18m2 stops Dallas/Fort Worth Brisbane

2:05 pm - 5:38 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

19h 33m1 stop Dallas/Fort Worth

$1,254Qantas Airways

Sun, Feb 28 - Tue, Mar 9

6:27 pm - 1:15 pmSDF Louisville Intl-SYD Sydney Kingsford Smith

26h 48m2 stops Dallas/Fort Worth Brisbane

2:05 pm - 5:38 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

19h 33m1 stop Dallas/Fort Worth

$1,268Qantas Airways

Sat, Feb 27 - Tue, Mar 9

6:27 pm - 11:05 amSDF Louisville Intl-SYD Sydney Kingsford Smith

24h 38m2 stops Dallas/Fort Worth Brisbane

2:05 pm - 5:38 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

19h 33m1 stop Dallas/Fort Worth

$1,268Qantas Airways

Sat, Feb 27 - Wed, Mar 10

Cheap last minute flights

Enter your travel dates to find the best prices.

8:00 am - 8:40 amSDF Louisville Intl-SYD Sydney Kingsford Smith

33h 40m2 stops Denver Intl Los Angeles

9:15 am - 8:33 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

27h 18m1 stop Houston George Bush Intcntl

$1,199United Airlines

Sun, Oct 25 - Wed, Nov 11

8:00 am - 8:40 amSDF Louisville Intl-SYD Sydney Kingsford Smith

33h 40m2 stops Denver Intl Los Angeles

9:15 am - 9:58 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

28h 43m1 stop Houston George Bush Intcntl

$1,199United Airlines

Sun, Oct 25 - Tue, Nov 10

3:45 pm - 7:00 amSDF Louisville Intl-SYD Sydney Kingsford Smith

24h 15m1 stop Houston George Bush Intcntl

9:15 am - 9:58 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

28h 43m1 stop Houston George Bush Intcntl

$1,199United Airlines

Sun, Oct 25 - Tue, Nov 10

3:45 pm - 7:00 amSDF Louisville Intl-SYD Sydney Kingsford Smith

24h 15m1 stop Houston George Bush Intcntl

9:15 am - 8:33 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

27h 18m1 stop Houston George Bush Intcntl

$1,199United Airlines

Sun, Oct 25 - Mon, Nov 9

7:05 am - 7:20 amSDF Louisville Intl-SYD Sydney Kingsford Smith

33h 15m2 stops Atlanta Hartsfield-Jackson Los Angeles

10:40 am - 9:42 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

27h 02m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,204Delta

Sun, Oct 25 - Tue, Nov 10

6:39 pm - 7:20 amSDF Louisville Intl-SYD Sydney Kingsford Smith

45h 41m2 stops Minneapolis St Paul Los Angeles

10:40 am - 7:14 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

24h 34m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,220Delta

Sat, Oct 24 - Mon, Nov 9

6:39 pm - 7:20 amSDF Louisville Intl-SYD Sydney Kingsford Smith

45h 41m2 stops Minneapolis St Paul Los Angeles

10:40 am - 7:14 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

24h 34m2 stops Los Angeles Atlanta Hartsfield-Jackson

$1,220Delta

Sat, Oct 24 - Tue, Nov 10

4:18 pm - 6:35 pmSDF Louisville Intl-SYD Sydney Kingsford Smith

35h 17m2 stops Dallas/Fort Worth Melbourne

2:05 pm - 6:26 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 21m1 stop Dallas/Fort Worth

$1,457Qantas Airways

Sat, Oct 24 - Sat, Nov 14

4:18 pm - 8:05 amSDF Louisville Intl-SYD Sydney Kingsford Smith

24h 47m2 stops Dallas/Fort Worth Melbourne

2:05 pm - 6:09 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 04m1 stop Dallas/Fort Worth

$1,457Qantas Airways

Sat, Oct 24 - Thu, Nov 12

4:18 pm - 7:30 pmSDF Louisville Intl-SYD Sydney Kingsford Smith

36h 12m2 stops Dallas/Fort Worth Melbourne

2:05 pm - 6:09 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 04m1 stop Dallas/Fort Worth

$1,457Qantas Airways

Sat, Oct 24 - Sun, Nov 8

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets

Qantas Airways

Feb 27

SDF6:27 pmLouisville Intl

29h 43m

2 stops

SYD4:10 pmSydney Kingsford Smith

Mar 8

SYD2:05 pmSydney Kingsford Smith

19h 33m

1 stop

SDF5:38 pmLouisville Intl

$1,268

Qantas Airways

Oct 31

SDF4:18 pmLouisville Intl

23h 37m

1 stop

SYD6:55 amSydney Kingsford Smith

Nov 25

SYD9:50 pmSydney Kingsford Smith

34h 12m

2 stops

SDF4:02 pmLouisville Intl

$1,321

Qantas Airways

Jan 25

SDF4:08 pmLouisville Intl

27h 37m

2 stops

SYD11:45 amSydney Kingsford Smith

Feb 24

SYD2:05 pmSydney Kingsford Smith

19h 33m

1 stop

SDF5:38 pmLouisville Intl

$1,347

Air New Zealand flights from Louisville to Sydney

Our best Air New Zealand deals on Louisville to Sydney flight tickets

Air New Zealand

Mar 1

SDF3:50 pmLouisville Intl

38h 00m

2 stops

SYD9:50 pmSydney Kingsford Smith

Mar 8

SYD11:50 amSydney Kingsford Smith

26h 09m

2 stops

SDF9:59 pmLouisville Intl

$1,297

Air New Zealand

Mar 1

SDF7:05 amLouisville Intl

33h 30m

2 stops

SYD8:35 amSydney Kingsford Smith

Mar 15

SYD9:55 amSydney Kingsford Smith

27h 04m

2 stops

SDF9:59 pmLouisville Intl

$1,340

Air New Zealand

Feb 28

SDF7:05 amLouisville Intl

43h 10m

2 stops

SYD6:15 pmSydney Kingsford Smith

Mar 9

SYD11:50 amSydney Kingsford Smith

25h 06m

2 stops

SDF8:56 pmLouisville Intl

$1,344

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 11/1

7:00 am-7:00 am

1 stop32h 00m

Sydney Kingsford Smith

Mon 11/23

9:15 am-1:23 pm

1 stop20h 08m

$1,199

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Wed 11/4

7:00 am-7:00 am

1 stop32h 00m

Sydney Kingsford Smith

Tue 11/24

9:15 am-8:33 pm

1 stop27h 18m

$1,199

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 11/3

8:00 am-9:05 am

2 stops33h 05m

Sydney Kingsford Smith

Tue 11/10

9:15 am-1:23 pm

1 stop20h 08m

$1,199

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Mon 11/2

7:00 am-7:00 am

1 stop32h 00m

Sydney Kingsford Smith

Mon 11/23

9:15 am-8:33 pm

1 stop27h 18m

$1,199

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Mon 11/2

3:26 pm-8:30 am

2 stops25h 04m

Sydney Kingsford Smith

Mon 11/23

10:40 am-12:00 pm

2 stops41h 20m

$1,204

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 11/3

1:59 pm-8:30 am

2 stops26h 31m

Sydney Kingsford Smith

Wed 11/25

10:40 am-9:42 pm

2 stops27h 02m

$1,204

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 11/1

3:26 pm-8:30 am

2 stops25h 04m

Sydney Kingsford Smith

Mon 11/23

10:40 am-12:00 pm

2 stops41h 20m

$1,204

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 2/28

6:27 pm-11:45 am

2 stops25h 18m

Sydney Kingsford Smith

Tue 3/9

2:05 pm-5:38 pm

1 stop19h 33m

$1,254

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sat 2/27

6:27 pm-1:15 pm

2 stops26h 48m

Sydney Kingsford Smith

Tue 3/9

2:05 pm-5:38 pm

1 stop19h 33m

$1,268

Quickest round-trip

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sat 2/27

6:27 pm-11:05 am

2 stops24h 38m

Sydney Kingsford Smith

Wed 3/10

2:05 pm-5:38 pm

1 stop19h 33m

$1,268

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Sydney?

In general, August is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,191. If you are unable to visit Sydney during the month of August, then departing from Louisville during the month June is also very affordable. Most momondo users find prices during this month for around $1,260.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 7% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Best Price Found	$693
Fastest flight time	22h 45m
Direct flights	None

The best one-way flight to Sydney from Louisville in the past 72 hours is $693. The best round-trip flight deal from Louisville to Sydney found on momondo in the last 72 hours is $1,199.

The fastest flight from Louisville to Sydney takes 22h 45m

There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.

Search flight deals

Frequently asked questions about flying from Louisville to Sydney

How far is Louisville Intl to Sydney Kingsford Smith by plane?
A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 22h 45m.
When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of October 2026.
How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Louisville to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Sydney is United Airlines (66% of total bookings). The next most popular airline is Delta (34%).

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $1,140	Free Cancellation	Rating 7.8 8,654 reviews		Search Delta flights
United Airlines	PriceFrom $1,243	Free Cancellation	Rating 7.3 10,392 reviews		Search United Airlines flights

Parramatta

Bondi Beach

Wollongong

Penrith

Katoomba

Coogee

Leura

Randwick

Cronulla

Manly

Terrigal

Lithgow

Charlestown

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 11/21

Sat 11/28

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Australia

Nearby airports

Airlines

Cabin classes

Other Australia destinations

Other flights from Louisville

Complete your trip

Feeling lucky

Cheap flights from Louisville to Sydney from $693

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 2/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Louisville to Sydney

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets

Air New Zealand flights from Louisville to Sydney

Our best Air New Zealand deals on Louisville to Sydney flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

See travel insights to Sydney from

How to get the cheapest flight ticket from Louisville to Sydney

What is the cheapest month to fly to Sydney?

Can stopping save me money on Louisville to Sydney flights?

What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

What airlines fly to Sydney?

When to book flights from Louisville to Sydney

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Louisville to Sydney

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales

Fly your favorite airline to Sydney

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sydney

List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Louisville

According to popular flight searches on momondo this year

Complete your trip to Sydney

Explore popular destinations other users love

According to popular flight searches on momondo this year